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The former Scelionidae (sensu stricto) is considered to be a part of Platygastridae, recently. During the parasitic wasp collecting with yellow pan trap, aiming at investigating promising biological control agents which attack on plantbug pests for soybean cultivation, one new species and one unrecorded scelionine species were identified. Opisthacantha albertoi sp. n. was collected from central part of korean peninsula. It is very unique by its yellowish body, compared with the black of the most recorded korean scelonine species. It has a long ovipositor which is 1.3 times longer than body length. It was named after the late Dr. S.-B. Ahn, the noctuid specialist. The unrecorded Tiphodytes gerriphagus (Marchal) was famous for its extremely extraordinary habit of diving for Hymenoptera to attack the eggs of gerrid hosts (Gerris, Trepobates spp.). It was collected nationwidely in Korea. As a result, two genera are newly added in korean scelionine fauna and korean Scelioninae is composed of eight species in five genera in total.
Lysiphlebia japonica (Ashm.) was determined as a dominant and a keystone aphid parasitoid in the ecosystems and agro-ecosystems of Korea. Host range of the parasitoid is reviewed on grounds of original and published records and it is discussed in relation to integrated pest management.
Mikhail A. Kozlov Zoological Institute, Russian Academy of Sciences, St. Petersburg A new species, Fusicornia koreica sp. n., from Korea is described and illustrated. This species is distinguished from F. indica of India and the key for discrimination is presented. This is the first record of the genus in the Palaearctic region.
검정알벌과의 분류동정 연구를 통해 한국 미기록아과인 정수리검정알벌아과(신칭, Teleasinae)에 속하는 창살검정알벌(신칭, P. nefrens Kononova)과 이랑검정알벌(신칭, P. sulcatus Kozlov)을 발견하여 한국미기록종으로 보고한다. Two Proteleas species, P. nefrensKononova and P. sulcatus Kozlov, are recorded for the first time in Korea. Teleasinae, which includes these two Proteleas wasps, is also a newly-recorded subfamily in Korea.
Riptortus pedestris (Hemiptera: Alydidae) is known to occur in barley field during spring. But, it is unlikely that R. pedestris can find host resource to reproduce in the spring season. To test this hypothesis, we assessed the reproduction of R. pedestris population collected from field from March to September. Riptortus pedestris were collected at intervals of three days from 15th of each month. Females of R. pedestris collected from trap were provided with just water in a breeding dish, and eggs laid were collected daily. Quality of R. pedestris eggs at each month was also evaluated by providing them as host resource to two egg parasitoids. The collected eggs were divided into three groups and tested for hatchability and parasitism by two egg parasitoids, respectively. As a result, R. pedestris population collected in March and April did not reproduce, and fecundity and proportion of reproduced females were the highest in August. But, neither hatchability nor parasitism rate of R. pedestris eggs show significant difference among the sampling months. In conclusion, R. pedestris starts to reproduce from May, and fecundity reaches highest on August. No change in egg quality was found among the study periods.
The purpose of this study was to provide basic data on dementia care center, define them in terms of the therapeutic environment, and to find improvements by developing and applying the therapeutic environment assessment tool for the dementia care center. Based on government policy data on national responsibility system for dementia and dementia care center, prior researches of the elderly with dementia, and analyses on the prior therapeutic environment assessment tools for dementia elderly facilities, in this study, the dementia care center was divided into 10 spaces and 8 therapeutic space indicators were developed to evaluate the therapeutic environment of the dementia care center. Using the tools, the assessment was conducted by visiting 4 dementia care centers in Seoul from August 4 to 12, 2020. As a result of the assessment, some differences are confirmed. 1) Difference between centers due to location, size, building type, and surrounding environment. 2) By space, "office", "cafe", "toilet", "external space" and "corridor" were lower than average. 3) Therapeutic space indicators lower than average were ‘cognitive and orientation support', ‘accessibility', and ‘continuity of function'. Therefore, plans for cognitive and intellectual support, practical application of universal design, and space layout considering continuity of function should be reflected in the plan in the operation of dementia care centers that will increase in the future.
Geographic clines in genetic polymorphisms are widely believed as an evidence of climate change. We hypothesized green peach aphid, Myzus persicae Sulzer, one of the major insect pests in highland chinese cabbage cultivation, may also have some interactions with climate change. As the first step, we tried to find the available markers from six local strains (five collected at different heights in Hoengseong and Pyeongchang area and one from laboratory). A strain from Jeju island was used as an out-group. Although there was no significant difference in sequences of partial ribosomal RNA fragment and mitochondrial cytochrome oxidase I, and esterase isozyme pattern, we found four inter-simple sequence repeat (ISSR) markers in 22 used ISSR primers (+AGA, +CCA, +CGA, CGA+). These primers can be used as good markers to trace the M. persicae gene flow because they showed specific bands according to local strains.
The green peach aphid, Myzus persicae (Sulzer), is one of the most serious pest in cabbage cultivation. Field survey was carried out to know the insecticide resistance levels in five main cabbage cultivation regions (Pyeong-chang, Hong-cheon, Bong-wha, Mu-ju and Je-ju) in 2009. The green peach aphid can resist a wide range of insecticides in five surveyed local populations. Among the nine tested insecticides, four chemicals (methomyl, bifenthrin, pymetrozine and flonicarmid) showed less than 50% mortality in the recommended concentration in all populations. Multi resistant (MR) strain was selected from these populations and esterase over-expression, modified AChE (MACE) and mutation(s) in para-type sodium channel were analysed using native IEF and quantitative sequencing with five local populations. Esterase over-expression and MACE (StoF mutation) were observed in all populations including MR strain. LtoF mutation is well known as a kdr mutation in para-type sodium channel. However, even though LC50 values of MR strain noted over 2,000 times higher than that of susceptible strain against bifenthrin, any mutation was not detected in para type sodium channel and also local populations. These results suggested that unusual case could be existed in pyrethroid resistance mechanism in green peach aphid.
Park,,Tae,Seo,Seo,,Jung,Yeol,Razzokov,,Anvar,S.,Choi,,June,Seok,Kim,,Min,Wook,Lee,,Jae,Woo,Kim,,Hyun,Yeol,Jung,,Youn,Joo,Choo,,Ki,Seok,Song,,Kyeong,Ho,Nam,,Su,Bong Korean Society of Plastic and Reconstructive Surge 2020 Archives of Plastic Surgery Vol.47 No.2
Background This study aimed to determine the magnitude of volume reduction of the latissimus dorsi (LD) muscle after treatment using only postoperative radiotherapy (PORTx) in patients who underwent immediate breast reconstruction using an extended LD musculocutaneous (eLDMC) flap after partial mastectomy. Methods We retrospectively reviewed 28 patients who underwent partial mastectomy and an eLDMC flap, received only PORTx, and underwent chest computed tomography (CT) 7 to 10 days after surgery and 18±4 months after the end of radiotherapy, from March 2011 to June 2016. The motor nerve to the LD was resected in all patients. One plastic surgeon performed the procedures, and the follow-up period was at least 36 months (mean, 46.6 months). The author obtained LD measurements from axial CT views, and the measurements were verified by an experienced radiologist. The threshold for statistical significance was set at P<0.05. Results A statistically significant decrease in the LD volume was found after the end of PORTx (range, 61.19%-80.82%; mean, 69.04%) in comparison to the measurements obtained 7 to 10 days postoperatively (P<0.05). All cases were observed clinically for over 3 years. Conclusions The size of an eLDMC flap should be determined considering an average LD reduction of 69% after PORTx. Particular care should be taken in determining the size of an eLDMC flap if the LD is thick or if it occupies a large portion of the flap.